Vertical Wind Tunnel

Vertical Wind Tunnel is used during downtime to improve a duplicants' morale and reduce stress. Despite being a recreational building, it does not need to be in a recreational room. At most 3 duplicants can use Wind Tunnel at once, and can enter/exit while running. Each use of the Vertical Wind Tunnel takes 90 seconds.

Trivia

 * When using the Vertical Wind Tunnel, if the 7th center tile is non-solid and the 8th center tile is solid, that solid tile loses mass constantly.
 * When using the Vertical Wind Tunnel, the leftmost and rightmost columns become a vacuum.
 * It can be used when tile underneath is not Gas.
 * The vertical wind tunnel can be used as a pump to transfer gas from one room to another. It currently does not have an overpressure limit.

History
Аэротруба